MGT or Mgt may be:
- Technology
- Multi-gigabit transceiver, serialiser/deserialiser capable of operating at serial bitrates above 1 gigabit/second
- Miles Gordon Technology, British technology company which produced Sinclair ZX Spectrum add-ons
- Master guide table, included in the Program and System Information Protocol used for providing electronic television programme guides
- Mobile Global Title, address used in the SCCP protocol for routing signaling messages to mobile devices on telecommunications networks
- Other
- An uncommon abbreviation for management
- Doctor of Management (D.Mgt.), academic degree awarded on the basis of advanced study and research in management
- Muslim Girls Training, the all-female training program of the Nation of Islam
- Mongol language (Papua New Guinea), ISO 639-3 code
- Morgan Guaranty Trust Company, American company formed in 1959 following JP Morgan's purchase of the Guaranty Trust Company of New York